How does the Codeforces feature in the Intellij edu plugin automatically test all input files?

The Codeforces feature in the Intellij edu plugin runs all of the input files in a test data directory and compares in against all of the output files. Is there a way to do this for other contests? 

For other contests, I am redirecting stdin to each input file individually and comparing it to the output file manually which is very time-consuming.